SLVAF52B July   2021  – November 2021 AFE8092 , TPS62913

 

  1.   Trademarks
  2. 1Introduction
  3. 2System Description
    1. 2.1 AFE80xx Noise and Ripple Requirements
    2. 2.2 AFE80xx Supply Settling and EVM for TDD Operations
    3. 2.3 Block Diagram
      1. 2.3.1 Proposed Power Architecture
      2. 2.3.2 Power Sequencing
    4. 2.4 Power Supply Design Consideration
  4. 3Tests and Results
    1. 3.1 Test Methodology
      1. 3.1.1 Phase Noise (Transmit) (dBc/Hz)
      2. 3.1.2 EVM for Frequency Division Multiplexing (FDD) Mode(%)
      3. 3.1.3 EVM for TDD Mode(%)
      4. 3.1.4 Receive (RX) Spectrum (Power Supply Spurious)
      5. 3.1.5 Power Efficiency
    2. 3.2 Test Conditions
    3. 3.3 Test Results
      1. 3.3.1 Phase Noise
      2. 3.3.2 EVM for FDD Mode
      3. 3.3.3 EVM for TDD Mode
      4. 3.3.4 RX Spectrum
      5. 3.3.5 Power Efficiency
  5. 4Conclusion
  6. 5References
  7. 6Revision History

3.1.4 Receive (RX) Spectrum (Power Supply Spurious)

The SFDR is the ratio of the RMS value of the signal to the RMS value of the peak spurious spectral component for the analog input frequency that produces the worst result. SFDR is intended to capture the spurious performance due to power supply stage into receive signal spectrum.
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